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HIP 4845
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Star HIP 4845

Red dwarf HIP 4845 is located 69 light years away from the Sun. It is a single star of spectral class M0V C, that has 62 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
69 light years
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HIP 4845

Red dwarf, High proper motion star
Spectral class: M0V C

Location +

Ascension iconRight ascension: 1h 2m 21.166s
Declination iconDeclination: -10° 25' 28.724'' (equatorial region)
Parallax iconParallax: 47.383
Distance iconSun distance: 68.835 ly | 21.1 pc
Star position
The position of a star tells us where it appears in the sky, similar to how we use coordinates like latitude and longitude on Earth. In astronomy, the three main coordinates are right ascension, declination and distance. .. icon More about Star position in StellarGuide

Basic characteristic

icon weight
Mass: 62 % M Sun
| 649 M Jupiter
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Star mass
Mass of the star HIP 4845 is 0.62 solar masses.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 60 % R Sun
| 6.2 R Jupiter
(estimate)
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Star size
Radius of the star HIP 4845 is not known. Its estimated value based on other similar stars is about 60 % solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature icon
Temperature: 3998 K | 0.69 T Sun
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Star temperature
Surface temperature of HIP 4845 is 3998 K, which is 69 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 10
Magnitude iconAbsolute magnitude (V): 8.4
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3
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HIP 4845 system structure

 HIP 4845
HIP 4845 b 0.18 AU 14.4 M⊕ 34.2 days

More about HIP 4845

Nearby star HIP 4845 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 60 % of the size of Sun and temperature on its surface is around 3998 K (3725 °C), which is about 69 % of Sun's temperature.
       HIP 4845 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is also observable from Northern America, Europe and Asia.
Other designations of this star
HIC 4845, BD-11 192, GJ 3072, Gliese 3072, 2MASS J01022113-1025256, TIC 24250831, TYC 5273-1440-1, WISEA J010221.15-102527.7, Gaia EDR3 2473055951588089088
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External sources
simbad icon
Simbad database (BD-11 192)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 2473055951588089088)
Archive from the Gaia mission

Frequently Asked Questions

How far is the HIP 4845 system from the Sun?

The HIP 4845 system is 69 light years or 21.1 parsecs from the Sun.

What galaxy is the HIP 4845 star in?

The HIP 4845 is in the Milky Way galaxy just like the Sun.

How many stars are in the HIP 4845 system?

The HIP 4845 is a single star, there are no other known stars in the system.

What type of star is the HIP 4845?

The star HIP 4845 is a Red dwarf star.

What temperature is star HIP 4845?

The star HIP 4845 has an effective temperature of 3998 K. Find out more about the temperature of stars in Stellar guide
Class of stars Red dwarf
Red dwarfs are small, cool stars with surface temperatures of about 2,000–3,800 K, much cooler than the Sun. They usually have 8–50% of the Sun’s mass and shine very faintly, sometimes at just a tiny fraction of the Sun’s brightness. Classified mainly as spectral type M, they are the most common stars in the Milky Way, making up roughly 70–75% of its stellar population.

They fuse hydrogen slowly through the proton–proton chain and are fully convective, which allows them to use their fuel very efficiently. As a result, red dwarfs can live for tens of billions to trillions of years—far longer than the Sun. Many exoplanets orbit red dwarfs, including some in close habitable zones, though strong stellar activity can affect planetary environments.
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